If your Google Calendar notification settings suddenly disappear, as happened to me, GOOD LUCK because your only choice is to go through your hundreds or perhaps thousands of clanear events by hand and re-set them. The combination of BusySync and Google Calendar provide NO WAY for you to delete a calendar's events en masse, set the default notification settings, and re-upload all your events for that calendar with the proper notification settings turned on.

I tried deleting my existing Google calendars recreating them by hand with the correct notification settings, and re-syncing, and instead of populating the ones I created, BusySync created identically named ones which it filled with my events, with, you guessed it, the notifications turned off.

I then tried exporting my events from iCal, deleting them from my calendars, hitting BusySync's various "Reset" settings, and re-syncing to have BusySync create the calendars but without any events, so I could set the notification settings before restoring my events from backup. I even tried changing the names of my calendars. No matter what I do, all my old events reappear on my google calendar witgh, you guessed it, the notifications turned off.

Then, if you keep trying, you run into a nasty little surprise... google sets unadvertised 24 hour limits on creating new calendars and on pushing events to existing ones. I am now stuck without my Google calendar for the day, and, because one of my calendars was a birthday calendar which I could only clear by backing up and deleting all my address book entries, without my contacts. Thanks, BusySync.

I thought it was a good product until this PITA. I'm furious at having to waste two hours of time like this over something so stupid.